Galaxies and Neurons

I was watching a show on Discovery channel and happened to think of this image from the NYTimes from last year comparing the structure of a slide of 3 mouse neurons and a simulation of a galaxy cluster (including dark matter). Images of a Galaxy Cluster and Neurons

Anyhow, even though I can't understand why there would be such similarity, it's just kind-of one of those odd similarities that sticks in your head.

Here's a website with some interesting animations. In one of the animations you can sortof see the phase of formation shown above.

And if you want to feel small check this out